Large Restaurant Portions a Global Problem

by Colleen Fleiss on  December 14, 2018 at 9:27 AM Diet & Nutrition News
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Examination of popular meals in full service and fast food restaurants in 5 countries reveals large number of highly caloric options, possible contributor to global obesity.
Large Restaurant Portions a Global Problem
Large Restaurant Portions a Global Problem

A new multi-country study finds that large, high-calorie portion sizes in fast food and full service restaurants is not a problem unique to the United States. An international team of researchers found that 94 percent of full service meals and 72 percent of fast food meals studied in five countries contained 600 calories or more.

The study also found that meals from fast food restaurants contained 33 percent fewer calories than meals from full service restaurants, suggesting fast food restaurants should not be singled out when exploring ways to address overeating and the global obesity epidemic. The study was published today in The BMJ.

"Fast food has been widely cited as an easy target for diet change because of its high calorie content; however, previous work by our team in the U.S. identified restaurant meals in general as an important target for interventions to address obesity," said first and co-corresponding author Susan B. Roberts, Ph.D., senior scientist and director of the Energy Metabolism Laboratory at the Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University.

The study measured the calorie content of the most frequently ordered meals from 111 randomly selected full service and fast food restaurants in five countries--Brazil, China, Finland, Ghana and India--plus five worksite canteens in Finland where worksite canteens are common and often offer subsidized lunch options to support employee health. The data were compared with comparable existing information for U.S. restaurants.

Of note: When compared to the data for the U.S., the mean restaurant calorie count was lower only in China, 719 vs. 1088 calories/meal.

On average, fast food meals contained fewer calories than full service meals, 809 vs. 1317 calories/meal.

The worksite canteens in Finland contained 25 percent fewer calories than the full service and fast food restaurants sampled in the country, 880 vs. 1166 calories/meal.

In all, 94 percent of meals from full service restaurants and 72 percent of fast food meals across all countries studied contained 600 calories or more. Three percent of meals from full service restaurants in four countries contained 2000 calories or more.

According to the World Health Organization, global obesity has nearly tripled in the last four decades. Identifying the factors which may lead to overeating, such as eating practices and environmental factors, may help with development of effective interventions. Research on restaurant meal sizes suggests recent public health recommendations to reduce restaurant meal servings to 600 calories may be one such tool for reducing weight gain and the prevalence of obesity worldwide.

"Current average portion sizes are high in relation to calorie requirements and recommendations globally," said Roberts. "As three meals and one or more snacks in between is common, including in the countries we studied, large restaurant portions should be examined further for their potential role in the global obesity epidemic."

Meals from Brazil, China, Ghana, Finland and India were collected and analyzed between 2014 and 2017. Meal components were analyzed by bomb calorimetry.

Limitations of the study include limiting samples to entrees and not the beverages, appetizers, and desserts that can be consumed with meals prepared away from home, which means that the measurements likely underestimate how large restaurant meals are. Most of the reference U.S. data was collected more than three years before the data for other countries. The researchers also assumed that the size of meals ordered and collected was the same as those supplied to diners inside the restaurants, and samples were collected in a single urban center within each country.

Roberts is also a professor of nutrition at the Friedman School of Nutrition Science and Policy at Tufts University and a professor of psychiatry at Tufts University School of Medicine. She is continuing her global obesity work with the International Weight Control Registry.

Source: Eurekalert

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